Several other hackers have since found the hidden mode, too.
The latest: The Apple iPhone 4S
To turn it on, though, your iPhone would have to be jailbroken or you will need to have developer access.
Apple does not recommend jailbreaking – where the phone’s file system is broken open to allow for modifications – which some users do so that they can download apps not available on iTunes.
It said: ‘Apple’s goal has always been to ensure that our customers have a great experience with their iPhone and we know that jailbreaking can severely degrade the experience.
‘As we’ve said before, the vast majority of customers do not jailbreak their iPhones as this can violate the warranty and can cause the iPhone to become unstable and not work reliably.’
It’s thought that the panorama camera mode is currently undergoing testing before being enabled for general use.